Corporate Portfolio Website Development

I'm seeking a skilled web developer to create a dynamic and visually engaging corporate portfolio website. The site will showcase our brand and expertise, and must include the following sections:

- About Us
- Services
- Case Studies

Key Requirements:
- Responsive design for mobile and desktop
- SEO optimization
- User-friendly navigation
- High-quality graphics and animations
- Secure and efficient backend

Ideal Skills & Experience:
- Proven portfolio in corporate website development
- Expertise in UX/UI design
- Strong knowledge of SEO and web security
- Proficiency in HTML, CSS, JavaScript, and relevant CMS platforms in addition of next.js react

Please provide examples of previous work and a clear timeline for project completion.